The "Walk the Line" actress, born on March 22, was whisked away to the ocean-front Capella Pedregal resort in Cabo San Lucas, Mexico, for four days of relaxation and pampering by her husband, Jim Toth. The two traveled without children Ava and Deacon (whose dad is actor Ryan Phillippe) and baby Tennessee (whose dad is Toth), and spent most of their time on holiday with just the two of them dining on their private patio and lounging by their private pool, according to People.

"They had a butler that served them lunch, and they eat healthy local food, including fresh fish, with rosé wine," a source told the magazine. "Reese and Jim looked very happy together. The busy couple rested every afternoon and also enjoyed the resort's spa."

On Friday, Witherspoon's actual birthday, Toth "treated Reese to birthday spa treatments," the source said. "When she returned, he surprised her with a romantic dinner. Jim made a big effort to make the trip very special for Reese."

The getaway, which ended on Sunday, suggests that Toth is making good on a promise he made to his wife of two years on March 26.

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(Splash News)

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(Splash News)

"Jim said, 'I'm gonna show you every day what a good partner is, what a good person is,'" Witherspoon revealed in the February 2012 issue of Elle. "'I'm going to take care of you. I'm gonna do this so much that you're gonna get used to it.' I was like, 'What are you talking about? I've never had anybody like that in my life.'"